摘要
根据研究区域 ( 310km× 2 2 0km)三年的气象资料 ,将每天的天气按季节、天气状况和风向与风速及其日变化等因子划归为具有代表性的不同天气类型 ,然后用中尺度气象模式模拟这些天气类型的风温场 ,使得模拟的风温场能反映下垫面动力和热力不均匀性的影响 ,并以此统计出研究区域内关心点的天气状况、风向和风速与天气类型之间的相关关系和相关判据。在已知关心点的季节、天气状况、风向和风速后 ,依据这种相关关系 ,找出相应天气类型的风温场 ,并用以预报核泄漏物的污染路径。
Based on three years' meteorological data obtained from the routinely meteorological stations in the studied area, some different weather types were measured off by meteorological factors, such as season, weather and hourly wind speed and direction. Its wind and temperature fields were simulated by mesocsale meteorological model in order that the simulated wind and temperature fields can render effects of thermal and dynamical inhomogeneity of underlying surface. With these fields, correlation of meteorological factors of concerned points with weather types could be built statistically, and relevant wind and temperature fields could be found by this correlation and used as forecasted ones to calculate concentration distributions of unclear pollutants when meteorological factors of concerned points were known.
出处
《气候与环境研究》
CSCD
2000年第2期189-194,共6页
Climatic and Environmental Research
基金
中国科学院"九五"重大项目!KZ951-A1-403-03-01的资助
